Antibacterial admixture for high-strength and high-performance concrete and preparation method of antibacterial admixture

Abstract

The invention relates to the field of concrete, in particular to an antibacterial admixture for high-strength and high-performance concrete, and relates an antibacterial admixture for high-strength and high-performance concrete. The antibacterial admixture is prepared by mixing the following components in parts by mass: a polycarboxylate superplasticizer, a chitosan-copper oxide composite antibacterial agent, fly ash, hydroxypropyl methyl cellulose, bentonite and polyacrylamide. The preparation method of the antibacterial admixture for the high-strength and high-performance concrete comprisesthe step of ultrasonic blending of the polycarboxylate superplasticizer and the chitosan-copper oxide composite antibacterial agent, and further comprises the step of blending of other components, andthe preparation method is simple and convenient. Good antibacterial performance is realized, and the antibacterial effect is lasting; the admixture has good water absorption performance, and under the condition that a small dosage of the admixture is added, the strength of concrete can be greatly improved.

Description

technical field [0001] The application relates to the field of concrete, more specifically, it relates to an antibacterial admixture for high-strength and high-performance concrete and a preparation method thereof. Background technique [0002] Concrete is a kind of artificial stone, which is generally obtained by mixing aggregates, Portland cement, water and admixtures. Concrete can be divided into many types according to its use, such as waterproof and impermeable concrete, thermal insulation concrete, refractory concrete, marine concrete, road concrete, radiation-proof concrete and so on. High-strength high-performance concrete refers to a kind of concrete with excellent mechanical properties, and has high durability, high workability and high volume stability. [0003] Antibacterial admixture is an admixture used to add to concrete to improve the antibacterial performance of concrete, so that concrete blocks can be used in scenes with antibacterial requirements. The Ch...

AI Technical Summary

Problems solved by technology

Bay leaf powder removes the unique fishy smell in the scales, adds the aroma of concrete, and at the same time purifies the air, inhibits fungal growth, and prevents corrosion. Such an admixture used in high-strength antibacterial concrete has not strong antibacterial effect and cannot It is well used in some occasions with high antibacterial requirements

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